Windows 8 and 8.1 Forums


Win 8.1 update fails repeatedly at 83% 0xC1900101-0x2000A

  1. #1


    Posts : 9
    Win 8.1 pro

    Win 8.1 update fails repeatedly at 83% 0xC1900101-0x2000A


    This update failure has occurred 5 times in the past three days on 32 bit system. My Win 8 update was purchased from MS in Nov. 2013 and installed then. During this recent update process I have updated Nividia card w/latest 32bit drivers and updated motherboard Intel chipset. This morning I ran SFC and found no integrity violations. DISM /restorehealth and /componentcleanup repaired and all OK. Still failed. Have read Barnacle's post and find 5 updates he mentions are missing. Need help getting them, if needed, and having problems doing so. Other guidance and suggestions appreciated.

      My System SpecsSystem Spec

  2. #2


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    I suggest before running update:
    1. Delete everything under: C:\Windows\SoftwareDistribution\Download
    2. Disable completely any anti virus software
    3. Task Manager -> Startup and disable everything in this tab.
    4. Win+X->Run and type: msconfig. On services tab, tick on: Hide all all Microsoft services then tap on Disable all
    5. Perform step 2 from this link: AUTOCHK Initiation Countdown Time - Change - Windows 7 Help Forums (the default in Windows 8 set to 1) then run: chkdsk C: /r <===== This may take a while to complete.
    6. Run Update.
      My System SpecsSystem Spec

  3. #3


    Harrisonburg, Va.
    Posts : 10,488
    Windows 8.1.1 Pro with Media Center


    Quote Originally Posted by topgundcp View Post
    I suggest before running update:
    1. Delete everything under: C:\Windows\SoftwareDistribution\Download
    2. Disable completely any anti virus software
    3. Task Manager -> Startup and disable everything in this tab.
    4. Win+X->Run and type: msconfig. On services tab, tick on: Hide all all Microsoft services then tap on Disable all
    5. Perform step 2 from this link: AUTOCHK Initiation Countdown Time - Change - Windows 7 Help Forums (the default in Windows 8 set to 1) then run: chkdsk C: /r <===== This may take a while to complete.
    6. Run Update.
    #4--- Windows key + letter R perhaps ???

    EDIT---

    I missed RUN in Win + X

    Click image for larger version
      My System SpecsSystem Spec

  4. #4


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    #4--- Windows key + letter R perhaps ???

    EDIT---

    I missed RUN in Win + X
    That's OK David, Win+R is 1 less mouse click. Cheers !!!
      My System SpecsSystem Spec

  5. #5


    Posts : 9
    Win 8.1 pro


    Followed every step and complied with instructions. Even used Win Key +R. No problems, lengthy chkdsk run as expected. Verified MS Essentials not running. Started Win 8.1 update from MS store. Ran smoothly until 83% when it quit and reverted to restoring previous version. Missing something somewhere apparently. What might I try next? Thanks very much for your interest and help.
      My System SpecsSystem Spec

  6. #6


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    Have you checked if you have the latest BIOS firmware for your MB ?
    The last resource would be to backup your data then do a Refresh then update.
      My System SpecsSystem Spec

  7. #7


    Posts : 9
    Win 8.1 pro


    Again, thanks for the suggestions and directions. I followed those and the ones I found at win8.1 update error 0xc1900101 - 0x2000a reboot a 84% - Microsoft Community and now have 8.1 up and running perfectly. I have a feeling, as did another, that dealing with the 'old windows' file played a part in the success. Probably the application of all was necessary as well. I hope that this helps others. Roving
      My System SpecsSystem Spec

  8. #8


    I'm not clear what you are trying to do are you attempting install 8.1? I suspect the problem is driver related. Have you tried running Microsoft's upgrade assistant: Upgrade Assistant: FAQ - Windows Help.
      My System SpecsSystem Spec

  9. #9


    Posts : 9
    Win 8.1 pro


    8.1 would not install due to two consistent errors - 0xC1900101-0x2000A. Stymied me and others and found the solution mentioned above just today. All installed and working now. Thanks.
      My System SpecsSystem Spec

Win 8.1 update fails repeatedly at 83% 0xC1900101-0x2000A
Related Threads
I have a Dell XPS 18 portable all-in-one machine that came with Windows 8, then I updated it to Windows 8.1 without any problems. It caught a nasty virus and I had to restore it to factory settings, which leaves me back at Windows 8. I have tried multiple times to install the Windows 8.1 update...
Update KB2973201 failing to install repeatedly in Windows Updates & Activation
Hello out there. I am in dire need of expert help. I have two desktops running Windows 8.1 Pro x64. In one of them, Windows Update KB2973201 is failing to install. (I have installed at least two other updates after this, so the problem is not related to Windows Update not working.) The...
Hello, I'm having problems with a certain update (KB2990967) that keeps showing up in as I check for updates in windows update. Is sucessfully intalled but as I check for updates again, it shows up (even after a reboot). Unfortunally I'm not receiving anymore updates other than that one. ...
Windows update fails in Installation & Setup
I recently re-installed windows 8 regular on my ASUS X450LC laptop using the recovery media. I tried to upgrade to 8.1. It wont let me install 8.1 unless I do windows update. After running windows update, it says there are 100+ updates and takes close to 2 hours to download and update. At 98%...
I have a Sony Vaio 32 bit machine 4gb RAM. It gets stuck at about 80-84% when updating then it says "Couldn't update to Windows 8.1 - 0xC1900101 - 0x40017" I haven't ever been able to find decent info on the actual microsoft site. I have no devices plugged in, no partitions, etc. Why is this...
Windows 8 Update Fails in Windows Updates & Activation
Hi all, I've run into the same problem twice now regarding windows 8 updates. Basically what happens is it will run an automatic update and restart, (even though I had them disabled, hell, I even selected it not even LOOK for automatic updates, yet it still automatically updated and restarted...)...
Hi there using a perfectly LEGAL version of W8 Enterprise - X-64 from TechNet -- but when I try and run Windows Update it Fails. I now get this wretched message every time I shut down the computer as well. I think I've tested this piece of B/S software enough on different platforms now to...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook